rewritten part of config to Haml, created helper for views

rewritten visual settings to Haml, created helper fo default views
As we discussed, if you add a helper here, it's available in ALL views called from ALL controllers. But is this needed?

The name  "ViewsConfigurationHelper" suggests that we might have something to do with configuration. Configuration is accessible from the opts controller if I am not wrong. So cannot we include this helper only there?

Then maybe (I am not a native English speaker) if you named the helper ConfigurationViewHelper it would sound better to me. But I may be wrong.